ID vs class vs data attribute

JavaScript performance comparison

Test case created by whomba

Preparation code

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

<div id="id">
<div class="id">
<div data-id>


    

Preparation code output

<div id="id"> <div class="id"> <div data-id>

Test runner

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Testing in CCBot 2.0.0 / Other 0.0.0
Test Ops/sec
ID
var $x = $("#id");
pending…
class
var $x = $(".id");
pending…
data
var $x = $("div [data-id='']");
pending…

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Revisions

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